When NOT to Test for Radon…and Why!

When NOT to Test for Radon…and Why!

Testing for radioactive radon gas is imperative to identify if your living, work or school space is safe without the fear of being exposure to a known carcinogen. That being said, there are times when it is NOT recommended to test and those times are:

  • Heavy rains: Heavy rains saturating the soil caps the soil preventing radon from escaping the ground and the path of least resistance is into a building.
  • Heavy wind: Heavy wind is frequently associated with storms which can affect the pressure in and around a building. A positive pressure is exerted on the windward side causing an overall negative pressure on a building.
  • Heavy snow: Heavy snow also caps the soil causing an extended negative pressure field making the conditions easier for radon to be sucked into a building. Radon levels are typically higher in heating seasons. Testing can be done in the winter yet contraindicated during heavy snow storms.
  • Do not test if proper closed house conditions of 12 hours has not been met prior to deployment.

In addition, prior to testing for a valid test, make sure:

  • ALL windows are closed
  • Fireplace flues are closed
  • Garage doors are closed
  • Stove exhaust fans venting to the outside are off
  • Whole house fans are off
  • Bathroom fans are off
  • Dehumidifiers are off
  • Sump pumps are covered properly
  • Dog or cat doors are sealed for the duration of the test
  • If HRV or ERV’s are regularly used, keep them on during the test. Do not turn them on for the purpose of the test if they are not actively used on a daily basis.

Test Your Home…Protect Your Family!

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